interface ShowMessage {
    void 显示商标(String s);
}
class TV implements ShowMessage {
    public void 显示商标(String s){
	System.out.println(s);
    }
}
class PC implements ShowMessage {
    public void 显示商标(String s) {
	System.out.println(s);
    }
}
public class Example6_2 {
    public static void main(String args[]) {
	ShowMessage sm;
	sm=new TV();
	sm.显示商标("长城牌电视机");
	sm=new PC();
	sm.显示商标("联想奔月5008PC机");
    }
}
